力與運動!!!急>0 - 運動
By Catherine
at 2009-01-23T00:00
at 2009-01-23T00:00
Table of Contents
1.擲出一個旋轉曲球的過程中,該球合力和合力矩為何?2.一物體體積10立方公分,質量30公克,投入湖中,最後以等速下沉,此時物體受水的浮力和阻力,兩者合力應為多少公克?3.一卡車總重3.5公噸,以36km/hr等速行駛,前方突然出現障礙物,看到障礙物到踩煞車經0.5秒反應,踩煞車後,車子於2秒內停止��
Tags:
運動
All Comments
By Thomas
at 2009-01-25T13:24
at 2009-01-25T13:24
By Ethan
at 2009-01-26T16:13
at 2009-01-26T16:13
By Sierra Rose
at 2009-01-25T21:09
at 2009-01-25T21:09
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